Handle-machine.



H. J. DUNCAN.

HANDLE MACHINE.

APPLICATION FILED OCT. 3!. I913.

1 10,99. Patented'Nov. 16, 1915.

4 SHEETSSHEET I.

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H. J. DUNCAN.

HANDLE MACHINE.

APPLICATION LED OCT. 3|. 1913. 11,1Q99. Patented Nov. 16, 1915.

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COLUMBIA PLANIJURAPH {IO-,WASHINUTON. D. c.

H. J. DUNCAN.

HANDLE MACHINE.

APPLICATION FILED 00131. I913.

Patented Nov. 16, 1915.

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H. J. DUNCAN.

HANDLE MACHINE.

APPLICATION FILED ocr. 31. ms.

1,1 0 99, v Patented Nov. 16, 1915.

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IOLUMBIA I'LANOGRAPH COuWASHINGTON. D. c.

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HENRY J. DUNCAN, OF ALPENA, MICHIGAN.

HANDLE-MACHINE.

Application filed Qctober 31, 1913.

To aZZwhom itmay concern: 7

Be it known that I, HENRY J. DUNCAN,

" citizen of the United States, residing at Alpena, in the county of Alpena and State of Michigan, have invented new and useful Improvements in Handle-llfachines, of which the following is a specification.

My present invention pertains to machines for making handles and the like.

The general'object of the machine is to provide a machine constructed with a View of first boring blocks of stock to a sllght depth from the ends thereof through the medium of two opposed boring tools or bits,

then completing the production of the bore through the medium of two other opposed boring tools or bits, then roughly reducing the piece of stock to the configuration de--' sired, and then finishing and discharging the completed handle; the operation being continuous so that When some pieces of stock are being subjected to the action of certain working elements of the machine, other pieces of the stock will be subjected to the action of other working elements.

The primary'and secondary borings of the pieces of stock are materially advantageous inasmuch as they lessen the liability of cracking of the pieces of stockand breaking of the lowing description and claims when read in 5 connection with the accompanying drawings, in which:

Figure 1 is an end elevation of a machine constructed in accordance with my invention. Fig. 2 is a top plan of the same. Fig. 3 is an elevation of that side of the machine from which the pieces of finished stock or handles are discharged. Fig. 1- is a vertical section taken in the plane of the line 4-1 of Fig. 8. Fig. 5 is a detail view illustrating in diagrammatic manner the primary and secondary borings of a piece of stock prece- Specification of Letters Patent.

' shaft 15.

Patented Nov. 16, 1915.

Serial No. 798,490.

dent to the reduction thereof to a circular form in cross-section.

Similarnumerals of reference designate corresponding parts in all of the views of the drawings.

Journaled in the main frame 1 is a drive shaft 2 having a spur gear 3 and a band pulley 4, and also journaled in said frame are longitudinal shafts 5 and 6 having fast thereon spurgears 7, inter-meshed with the gear 3 and through which the shafts 5 and 6 are rotated from the-shaft 2.

Fixed on each of the longitudinal shafts 2 and 6 are two pairs of cam members 8', and formed in the said cam members 8 are ways 9, disposed as appears in Fig. 1. Also fast on the longitudinal shaft 5 are cams 10 and 11, and fixed on the shaft 2 is a cam 12 for purposes hereinafter set forth.

Fixed with respect to and rising from the main frame 1 are uprights 13, Figs. 1 to 4, and pivoted to said uprights is a swinging frame 14 in which is journaled a shaft 15 that bears a band pulley 16 and a plurality of saws 17. The pulley 16 is designed to be connected through a band, (Fig. 8) with a pulley on an overhead drive-shaft. The saws 17 are arranged to slant to a slight ex tenti. e., they are arranged at a slight angle to a line extending at a right angle to the Moreover, the saws have collars 18, oflarge diameters, and hence it is feasible to drive them at a high rate of speed so as to reduce the pieces of stock, of rectan gular form in cross-section in a short period of time, and this without vibration. The

saws are adapted to wabble slightly so as to contribute to the expeditious rounding of the pieces of stock, and all of the saws are keyed on the shaft so that they can be arranged, to jointly reduce the pieces of stock to the desired shape and leave little to be done by the knife. 7

Bolted to the main frame 1 is abracket 19 thatis adapted to be raised and lowered according to the size of the handles to be produced, and is also adapted to be adjustably fixed withrespect to the mainframe. Slidable in the upper portion of the bracket 19 are inwardly and upwardly inclined rods 29, and fixed to and movable with said rods 1s a holder 21 in which is secured in approved manner a knife 22 for the purpose hereinafter set forth. An upright lever 23 is fulcrumed at an intermediate point of its length on a suitable support, and at its lower end of the turned handles.

in this Connection that as afollower 34, heresaid lever is provided with an anti-friction roller 24 that is normally held in yielding manner against the cam-11, and is designed to be moved by said cam to rock the lever.

The upper arm of said lever 23 is connected through a link 25 with the holder 21, and hence it will be manifest that incidental to the operation of the machine and the rotation of the shaft 6, the knife 22 will at the proper times be moved inwardly and up wardly and outwardly and downwardly, A

retractile spring 26 is preferably the agency gang of saws 17 is raised at intervals through (the medium of the cam 10 on shaft 6, a vertically-swinging lever 27 ful'crum ed at one end and having at its opposite end' an antifric tion roller 28' opposed totlie said cam 10, and. a link 29 interposed between and con necting the lever.2'7an'd'the frame 14..

For; the purpose of putting p'ieees of stock onrot ary chucks, hereinafter described, and, at the same time displacing the formed handles, I provide the guides 30. These guides have downwardlyextending arms. 31, and as shown in 3 they areadapted to operate so expeditiously that the knife 22 hasample time to finish thehandles. Theguides 30, whichat movable to andfro longitudinally of. the. machine have a stroke of approximately halfan. inch. Said guides are provided with abutments 33, Fig, 4, for the squarepieces of stock to bring up against, and the. said piecesof stock. are retained-1n the guides although the discharge ends of theguides are large enough for thepassage It will be observed inafter described, pushes the bored block to the rotary chucks 35 hereinafter.descrlbed, the guides 30-move inwardlv, andt'his-before the knife22 hasffinished turning the handle, and when the chucks pull out of the handle, the handle is not permitted to fly, as there is only the'one discharge for the handle, and therefore as soon as the. chucks release the finished handle the following square piece of stock ejects it, and as; soon as. said chucksv enter the holes 1n the ends of the square piece ofstock, the guides30 move outwardly off the piece of stock and permit the same to turn about its axis with the chucks.- The guides 30 are in their inner positions when a square piece of stcckpushes before it:a turned handle, and brings up against the abutments' 33; it, being. understood that the said abutments 33 are so c011 struct'ed' and arranged as to enable the I also employ two higher longitudinally movable spindles 38 in the inner opposed ends of which are boring toolsor bits 39 for completing the bores in the ends of the pieces of stock; the bits 39 being sufiiciently long to meet in the middles of the pieces of stock.

The spindles 88 and tools 39 are arranged in a higher plane than the spindles 36 and tools 37, and in order to raise the pieces of stock from the lower spindles to the higher ones, I employ the elevator 40, Fig. 4. The elevator 40 is designed to be raised by the cam 12 on the longitudinal shaft 2, through the'medium of lever 42 and links 43; the lever being. fulcrumed at one end, and having at an intermediatepoint of its length an, anti-friction roller 44 that. is opposed to the cam, and being conneetedatitsother end to the said links 43. At the proper time in the working of. the machine the cam 12, lever.42 and links 43raisethe elevator 40. The elevator 40 is provided withtwo portions 47 and 48; the portion 47 being arranged lower than the portion 48. as shown.

49, 50 and 51 are three platforms; the platform 50 being higher than the platform 49, and the platform 51 higher than. the platform. 50 in about the proportion illustrated. On the upstroke of the elevator 40,

it serves to raise a square block of stocki52', Fig. .4, from the plane of the platform 49 to the plane of the platform'50 and also serves-to raise a preceding block 52 from.

the plane of the platform 50 to the plane of the platform 51.

53 is a swinging spring-backed clamp designedto hold a. block on the platf'orm49in position ready to be pushed by another block to a point above the lowerportion 47- of elevator 40.

54 is a vertically-swinging springpressed clamp designed to holda block of stock on the platform 50 ready to be pushed byafollowing block to a position above the higher portion 48 of the elevator 10, and 55.;and 56 are the followers complementary to the plat forms 49 and 50 respectively. It is to be noted here that the clamp 54 is carried by a pivoted bail-shaped frame 55, the said frame being providedin order to enable the follower 56 to move therein to and from a position immediately back of the clamp 54. The follower 34 hereinbefore alluded to, which follower 34: is complementary to the platform 51, is fixed to and movable by the follower 56.

The followers 55 and 56 are connected through pairs of links 60 and 61 with lever arms 62, Figs. 2 and 1, fast on a rock shaft 63. The said shaft 63 is provided with another arm 6'11, and the latter is connected through a link 65 with a Wrist pin 66 carried by a disk 67 fast on the shaft 2 at one end thereof, Figs. 2 and 4.

The stock is reduced to blocks of the desired length by a saw 70, and is then placed on the upper stretch of a suitably driven belt 71. This belt '11 conveys the blocks to the upper end of a chute 72 by which the blocks are conducted to a point on the platform 49 and in the path of the follower 55. i

As will be observed by comparison of Figs. 1, 2 and 3, there are two pairs of 1ongitudinally-movable rods mounted in the main frame 1 at opposite sides of the trans verse center of the machine. The rods of the pairs above the shaft 2 are numbered and 91, and the rods of the pairs above the shaft 6 are numbered 92 and 93. The rods 90 at opposite sides of the transverse center of the machine, Fig. 2, are provided at their outer ends with links 94: connected with the spindles 36 in such manner that the spindles -are adapted to turn in the arms or links 94,

and yet are adapted to be moved endwise inwardly and outwardly by said arms 94. The rods 91 are provided at their outer ends with arms 95, connected to the outer ends of the spindles 38 in such manner that the said spindles 38 are moved endwise inwardly and outwardly by the arms 95, and yet are free to turn about their axes in said arms. The rods 92 are provided at their outer ends with arms 93, and to said arms are connected the endwise movable spindles 96 of the before-mentioned chucks 35; the connections being such that the spindles 96 are free to, rotate about their axes in the said arms, and yet are movable endwise by the arms. When desired the connections described between the several spindles mentioned and the arms on the rods by which the spindles are moved inwardly and outwardly may be similar in construction to the corresponding connections disclosed in my Letters-Patent No. 811,281 of January 30, 1906. The endwise movable rods 93 are connected at 97 with the arms 31 of the guides 30. Mounted on the endwise movable rods 90 and 91 are blocks 100 and 101; the blocks 100 being secured by set screws to the rods 90, and movable loosely on the rods 91, and the blocks 101 being affixed by a set screws to the rods 91 and movable loosely on the rods 90. The blocks 100 are provided with anti-friction wheels movable in the ways 9 of the outer cams below said blocks, while the blocks 101 are provided with anti-friction wheels movable in the ways 9 of the cams 8 below said blocks 101,

and consequently it will be observed that rotation of the shaft 2 will be attended by inward and outward movements of the spindles 36 and 38 and their boring tools. Fixed by set screws on the rods 93 and loosely mounted on the rods 92 are blocks 103 having anti-friction wheels 105 disposed in the ways 9 of the cams 8 below said blocks 103, Fig. 3, while fixed by set screws to the rods 92 and loosely mounted on the rods 93 are blocks 101 having anti-friction rollers 105 disposed in the ways 9 of the cams 8 that are disposed below the blocks 10%. From this it follows that rotation of the shaft 6 will be attended by inward and outward movements of the chucks or centers 35 and inward and outward movement of the guides 30; the movements of all of the parts being timed as before described. Each of the spindles 36, 38 and 96 is provided with a band pulley as shown so that said spindle can be driven by a belt from an overhead shaft.

When desirable additional guide rods 1 10 disposed longitudinally of the machine may be employed to prevent springing of the con nections between the blocks that are movable longitudinally and the higher elements that are moved endwise of the machine by the said blocks. See in this connection Fig. 1.

It is believed that the general operation of my novel machine will be fully understood from the foregoing and that therefore it is not necessary to reiterate the same.

Having described my invention, what I claim and desire to secure by LettersPatent, is:

1. In a handle producing machine, the combination of opposed rotary chucks, means for rotating said chucks, means for moving the chucks endwise toward and from each other, means for rotating the chucks, means for turning the stock, guides for holding the pieces 01' stock while the same are being engaged by the chucks and for holding the handle against flying after it is reduced to the circular form in cross-section, said guides having abutments constructed and arranged to prevent forward movement of the unturned pieces of stock and to permit forward movement of the turned pieces of stock or handles of circular form in crosssection, and means for moving said guides toward and from each other.

2. In a wood-working machine, the combination of three platforms arranged in different horizontal planes and having their adjacent portions separated by intervening vertical spaces, an elevator having portions arrangedin. said: spaces, means for actuating beingspaced apart, a set of boring tools arranged adjacent to the forward end of the rear and lowest platform, a second set of boring tools arranged adjacent to the forward end of the intermediate platform, opposed rotary chucks arranged adjacent to the foremost and highest platform, means for rotating said chucks, means for moving the chucks endwise toward and from each other, means. for turning the stock, guides for holding the pieces of stock While the same are being engaged by the chucks and for holding the handle against flying after it is reduced to circular form in cross-section; said guides having abutments constructed and arranged to prevent forward movement of the unturned pieces of stock and to permit forward movement of the turned pieces of stock, means for moving portions for raising pieces of stock from the rear platform to the intermediate platform and from the intermediate platform to the upper platform, respectively, clamps arranged above the forward portions of the lower and intermediate platforms and yieldingly pressed downwardly, and means for depositing pieces of stock on the lowest platform in the path of the follower thereof.

In testimony whereof I have hereunto set my hand 1n presence of two subscribing witnesses.

\ V HENRY J. DUNCAN.

Witnesses:

JosErH CAVANAGH, JAMES R. MCDONALD.

Gopies of this patent may; be obtained for five cents each; by addressing the Commissioner of Patents.

' Washington, D. C. 

